Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
hanh hai » thanh hai, nhanh hai, hang hai
hieu van » hieu va, thien van, lieu va
dua tren » dung tren
ky dang » ky nang, ky danh
dang xa » dang xay, lang xa, dang ha
van cac » van hac, van cau, van bac
thuc va » thuc vat, thuc dan, thuc day
su sac » su sach, su cac, su xac
sac ky » cac ky, sai ky
tuc va » truc va, tuc xa, duc va

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: su sac ky dang xa hoi. hieu van cac ((tuc va) or (thuc va)) hanh hai ((dua tren) or (cua triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sac ky dang xa hoi. hieu van cac ((tuc va) OR (thuc va)) hanh hai ((dua tren) OR (cua triet)).
• Adding a wildcard symbol may retrieve word variants: su sac ky dang xa hoi. hieu van cac ((tuc va) or (thuc va)) hanh hai ((dua tren) or (cua triet))*.